Hair-clipping device



G. STOCKING. HAIR CLIPPNG DEVICE.

APPLICATION FILED MAY 2. I9I9.

tented AprwlS, 1920.

GEORGE STOCKING, 0F SAN FRANCISCO, CALIFORNIA.

HAIR-CLIPPING DEVICE.

Specification of Letters Patent.

ratented Apr. 13, 1920.

Application led May 2, 1919. Serial N o. 294,159.

To all whom t may concern:

Be itknown that I, GEORGE STOCKINC., a citizen of the United States, and a resident of San Francisco, county of San Francisco, and State of California, have invented certain new and useful Improvements in Hair- Clipping Devices, of which the following is a specification.

The hereinafter described invention relates to that class of clippers which are power driven.

The object of the invention is to provide in a hair clipper a unit construction consisting of a power,` or driving unit and. a clipper or driven unit, each unit complete within itself and releasably confined in operative engagement with each other so that quick repairs and accessibility to parts can be had; particularly desirable when an electrical power unit is employed in driving the clipper unit.

An important object of the invention is to construct the clipper or driven unit with all mechanism pertaining thereto attached to a single head so that upon removal from the power unit all parts of the clipper unit will remain in operative relation.

Another object of the invention is to construct the clipper or driven unit so that its= gear mechanism will be completely housed for the prevention of hair lodging in the gears and impeding their action interrupting continuous working and causing frequent stoppage of the device for the removal of-hair therein, and consequently reducing the general efficiency and utility of the clipper.

In the accompanying drawings, Figure 1 is a plan view showing the power or driving unit andthe clipper or driven unit fully assembled in accordance with my invention, a portion of the view being broken to better show the connection between the driving and driven units.

Fig.` 2 is a side elevation showing the driving unit and the driven unit releasably confined in operative engagement.

Fig. 3 is a sectional view taken on line 3 3 Fig. 2 showing the driven unit gears in mesh in the grease tight gear housing af-l fixed to the head of the driven unit, the detachable connection to the driving unit being shown.

Fig. 4 is a sectional plan view showing a construction of clipper unit gear housing integral with the head of the clipper unit.

Numeral 1 indicates an electrical motor or driving unit. 2, a clipper or driven unit. 3, the main shaft of the clipper unit formed with. square end, l1, extending beyond clipper unit head, 5. 6, the shaft of the driving unit formed with square socket, 7, engaging extended square end shaft, 4:. Clipper unit head, 5, is releasably confined by cap screws, 8, to motor unit head, 9. 10 indicates a grease tight housing attached to clipper unit head, 5, inclosing gears, 11 and 12. Attached to gear wheel, 12, is crank pin, 13, and connected to crank pin, 13, is rod, 14:. 15 indicates the knives of the two handled clipper generally used, one handle of which, 16, is secured to the gear housing, 10, and the other handle, 17, of which is pivotally connected at 18 to rod, 14, thereby completing the mechanism for operating the clipper knives, 15, upon movement of the clipper unit shaft, 3. It will be noted that all mechanism of the clipper unit, 2, is directly attached to head, 5.

It is obvious that many forms of transmission between the driving and driven units can be employed other than the eX- tended square shaft of the driven unit and the square socket motor shaft fitting same as well as the means of releasably confining the two units in operative relation without departing from the principle of the invention.

In the construction of the invention each unit is made complete within itself so that both the motor unit and the clipper unit are capable of being independently operated, a juncture of units being made by securing the heads of the respective units in releasably confined engagement in which position their shafts are operatively engaged.

In operation it is possible with the construction of my invention as shown to secure generally good and uniform service as special provision has been made for quick detachment of the operating units so that in case of adjustment being necessary the electric driving unit, which is more liable to require attention and repair from overload or short circuiting than any other part of an electrically operated device, can be quickly disconnected from the clipper unit without having to break down the clipper operating mechanism, gears, etc., to secure accessibility to the electrical motor as has been the case in devices of this kind heretofore, and likewise if repair is required to `be made in the clipper unit, the power unitv does not Suder disturbance being simply disconnected from the clipper unit. as a whole, all of which makes dfor efficiency and continuous operation so desirable in a device of this character.

What I claim is 1. In a clipper, a driving unit, a driven unit, face plates on said units provided with registering openings and adapted to be releasably connected together, a shaft for the driving unit having its outer endterminating short of the face plate of said unit, and a shaft for the driven unit extending through the face plate of said driven unit and releasably engaging the shaft 'of the driving unit.

2. In a clipper, a driving unit, a driven unit, face plates on said units provided with registering openings and adapted to be releasably connected together, ashaft for the v .driving unit having a recessed outer end terminating short of the face plate of said unit, and a shaft for the driven unit extending through the face plate of said unit and releasably engaging the recessed end of the shaft of the driving unit.

3. In a clipper, a driving unit, a driven unit, a shaft for the driving unit,- a head for the driving unit,4 a shaft for the driven unit, a head for ythe drivenvunit, aygear attached to the shaft of the driven unit, a gear in mesh with said gear operatively attached to 'the knivesl of the clipper, a greasetight gear case entirely inclosing said gears interposed between the driving and driven units and secured to the head of the driven unit, and a releasably confined connection r,between the heads of the two units whereby their respective shafts'are held in operative engagement. A V

GEORGE STOCKING. Witnesses J. C.` MARLIs, Jr., T. D. 'GARucHs. 

